Comments on: Hidden Handedness http://www.rkwest.com/left-handed/2007/04/10/hidden-handedness/ Your left hand, your right hand, and both sides of your brain Mon, 06 Feb 2012 21:14:50 +0000 http://wordpress.org/?v=3.0.4 hourly 1 http://wordpress.org/?v=3.0.4 By: Dov Henis http://www.rkwest.com/left-handed/2007/04/10/hidden-handedness/comment-page-1/#comment-8349 Dov Henis Sat, 26 Mar 2011 04:58:26 +0000 http://www.rkwest.com/left-handed/?p=59#comment-8349 Hidden Schmidden Handedness... Right-Handedness Evolution, Culture-Genetics Relationship. Nov 12 2009, from http://www.the-scientist.com/community/posts/list/220/122.page A. From "Aping the Stone Age" http://www.sciencenews.org/view/feature/id/49158/title/Aping_the_Stone_Age Chimp chasers join artifact extractors to probe the roots of stone tools Converging lines of evidence indicate that wild chimps indeed invent distinctive types of tools within communities, and these tools get passed from one generation to the next as a kind of cultural legacy For roughly 50,000 generations, Oldowan toolmaking techniques got passed from hominid experts to novices. In recent experiments, it was found that captive chimps display a similar capacity for learning how to use tools by observing more experienced comrades. One of the projects combines chimp, hominid and modern human data to explore the enduring mystery of why most people are right-handed. Judging by stone tools, by at least 120,000 years ago right-handedness frequently occurred among Neandertals, and archaeological record from ancient Homo sapiens that lived during the same time as Neandertals shows similar signs of a right-handed skew. Most Oldowan toolmakers from nearly 2 million years ago were probably right-handed. However, whereas wild chimp communities display a variety of hand preferences, a trend of relatively stronger right- and left-handedness does appear in chimp groups that regularly use tools, such as nut-cracking stones or sticks for poking into termite mounds to remove the edible insects. Researchers suspect that "specific genes contribute to human hand preferences". Uomini hypothesizes that people and chimps share a genetic propensity to use one hand more than another on tasks that demand dexterity. Genes for right-handedness, though, have evolved in humans alone, she proposes. B. Adnauseam, it is culture that drives genetic changes, NOT genetics that drives cultural changes "Specific genes contribute to human hand preferences"? Read this above abstract again and again. Note: First comes culture. Genetics follows culture. Genes propagate in an expression conformation that maintains their evolved energy constrainment level. If/when their higher stratum take-off organism attains an enhanced level of energy constrainment the genes modify their expression accordingly. This is the drive and direction of life's evolution. This is how the horses are harnessed, to the front of the wagon, not to the rear. C. And also adnauseam, right-handedness is NOT an enduring mystery http://www.articlesbase.com/science-articles/genes-are-organisms-earths-primal-organisms-805441.html Just as life's chirality was the best energy-constraining product of the early organisms, direct sun energy fueled independent RNA genes, and therefore it was selected to survive, so a preferred-tools-handedness proved energetically advantageous, and since it happened to start with right-handedness it has been since then inducing genetic expression adjustment. And since humans, and even primates, are just fresh young novel organisms on Earth, the process is still going on, not yet completed. Just wait and see. When you return to Earth one-two million years from now you'll hardly find any left-handed people. Dov Henis (Comments From The 22nd Century) http://www.the-scientist.com/community/user/profile/1655.page Updated Life's Manifest May 2009 http://www.the-scientist.com/community/posts/list/140/122.page#2321 Implications Of E=Total[m(1 + D)] http://www.the-scientist.com/community/posts/list/180/122.page#3108 Hidden Schmidden Handedness…

Right-Handedness Evolution,
Culture-Genetics Relationship.

Nov 12 2009, from
http://www.the-scientist.com/community/posts/list/220/122.page

A. From “Aping the Stone Age”
http://www.sciencenews.org/view/feature/id/49158/title/Aping_the_Stone_Age
Chimp chasers join artifact extractors to probe the roots of stone tools

Converging lines of evidence indicate that wild chimps indeed invent distinctive types of tools within communities, and these tools get passed from one generation to the next as a kind of cultural legacy

For roughly 50,000 generations, Oldowan toolmaking techniques got passed from hominid experts to novices. In recent experiments, it was found that captive chimps display a similar capacity for learning how to use tools by observing more experienced comrades.

One of the projects combines chimp, hominid and modern human data to explore the enduring mystery of why most people are right-handed. Judging by stone tools, by at least 120,000 years ago right-handedness frequently occurred among Neandertals, and archaeological record from ancient Homo sapiens that lived during the same time as Neandertals shows similar signs of a right-handed skew. Most Oldowan toolmakers from nearly 2 million years ago were probably right-handed. However, whereas wild chimp communities display a variety of hand preferences, a trend of relatively stronger right- and left-handedness does appear in chimp groups that regularly use tools, such as nut-cracking stones or sticks for poking into termite mounds to remove the edible insects.

Researchers suspect that “specific genes contribute to human hand preferences”. Uomini hypothesizes that people and chimps share a genetic propensity to use one hand more than another on tasks that demand dexterity. Genes for right-handedness, though, have evolved in humans alone, she proposes.

B. Adnauseam, it is culture that drives genetic changes, NOT genetics that drives cultural changes

“Specific genes contribute to human hand preferences”? Read this above abstract again and again. Note: First comes culture. Genetics follows culture. Genes propagate in an expression conformation that maintains their evolved energy constrainment level. If/when their higher stratum take-off organism attains an enhanced level of energy constrainment the genes modify their expression accordingly. This is the drive and direction of life’s evolution. This is how the horses are harnessed, to the front of the wagon, not to the rear.

C. And also adnauseam, right-handedness is NOT an enduring mystery
http://www.articlesbase.com/science-articles/genes-are-organisms-earths-primal-organisms-805441.html

Just as life’s chirality was the best energy-constraining product of the early organisms, direct sun energy fueled independent RNA genes, and therefore it was selected to survive, so a preferred-tools-handedness proved energetically advantageous, and since it happened to start with right-handedness it has been since then inducing genetic expression adjustment. And since humans, and even primates, are just fresh young novel organisms on Earth, the process is still going on, not yet completed. Just wait and see. When you return to Earth one-two million years from now you’ll hardly find any left-handed people.

Dov Henis
(Comments From The 22nd Century)
http://www.the-scientist.com/community/user/profile/1655.page

Updated Life’s Manifest May 2009
http://www.the-scientist.com/community/posts/list/140/122.page#2321
Implications Of E=Total[m(1 + D)]
http://www.the-scientist.com/community/posts/list/180/122.page#3108

]]> By: Antoinette MacPhearson http://www.rkwest.com/left-handed/2007/04/10/hidden-handedness/comment-page-1/#comment-7769 Antoinette MacPhearson Thu, 14 May 2009 22:45:07 +0000 http://www.rkwest.com/left-handed/?p=59#comment-7769 I recently discovered something interesting: I write with my right hand but do most everything else using the right hemisphere of my brain. I cross my legs with my right leg resting on my left, ect. It dawned on me just in the last several minutes that I was the one who forced myself to write with my right hand. My older sister was a leftie but was forced to use her right hand in kindergarten. My mom says that by the time I was in school and learning to write I was already using my right hand, but my sister and I both have a horrible time telling left from right and I am extremely awkward in verbal/writing skills(which are left hemisphere dominant) and very creative in art, music and acting(which are right hemisphere dominant). By the time I was 3 I was making art. No one seemingly taught me, I just picked it up. I am guessing I learned it from watching television. When I learn things I can't learn verbally I have to see it done and when I do see it done I mimic it exactly. I think I must have seen someone on TV drawing with their right hand and I mimicked it precisely. I believe that I was intended to write with my left hand, but because I am the one who made myself use my right hand I never experienced the stress that most lefties who were forced to write with their right hand experienced. Does anyone think it would benefit me to buy this book and learn to write with my left hand? I recently discovered something interesting: I write with my right hand but do most everything else using the right hemisphere of my brain. I cross my legs with my right leg resting on my left, ect. It dawned on me just in the last several minutes that I was the one who forced myself to write with my right hand.
My older sister was a leftie but was forced to use her right hand in kindergarten. My mom says that by the time I was in school and learning to write I was already using my right hand, but my sister and I both have a horrible time telling left from right and I am extremely awkward in verbal/writing skills(which are left hemisphere dominant) and very creative in art, music and acting(which are right hemisphere dominant). By the time I was 3 I was making art. No one seemingly taught me, I just picked it up. I am guessing I learned it from watching television.
When I learn things I can’t learn verbally I have to see it done and when I do see it done I mimic it exactly. I think I must have seen someone on TV drawing with their right hand and I mimicked it precisely. I believe that I was intended to write with my left hand, but because I am the one who made myself use my right hand I never experienced the stress that most lefties who were forced to write with their right hand experienced. Does anyone think it would benefit me to buy this book and learn to write with my left hand?

]]> By: Rosemary West http://www.rkwest.com/left-handed/2007/04/10/hidden-handedness/comment-page-1/#comment-7714 Rosemary West Mon, 09 Mar 2009 04:02:24 +0000 http://www.rkwest.com/left-handed/?p=59#comment-7714 Anna, that is extremely impressive! Anna, that is extremely impressive!

]]> By: Anna http://www.rkwest.com/left-handed/2007/04/10/hidden-handedness/comment-page-1/#comment-7710 Anna Mon, 09 Mar 2009 02:57:50 +0000 http://www.rkwest.com/left-handed/?p=59#comment-7710 I am originally right-handed, but became ambidextrous at the age of six when my right arm was broken and I had to have a cast on for six MONTHS. During that time, I started writing with my left hand, and now I can write two different sentences with both hands at the same time. It's exciting!!! I am originally right-handed, but became ambidextrous at the age of six when my right arm was broken and I had to have a cast on for six MONTHS.
During that time, I started writing with my left hand, and now I can write two different sentences with both hands at the same time.
It’s exciting!!!

]]> By: abigail http://www.rkwest.com/left-handed/2007/04/10/hidden-handedness/comment-page-1/#comment-3101 abigail Fri, 30 Nov 2007 19:40:41 +0000 http://www.rkwest.com/left-handed/?p=59#comment-3101 I'm 3 chapters into this book and it is very helpful to me. Some of the language is effusive and too flowery for my personal taste, but the core message is there. That is, laterility and the altering of neural pathways is not something that should be fiddled with via switching. I recommend this book to anyone who has been switched from L to R. I'm excited about finishing this book, who knows where it might lead. Abby I’m 3 chapters into this book and it is very helpful to me. Some of the language is effusive and too flowery for my personal taste, but the core message is there. That is, laterility and the altering of neural pathways is not something that should be fiddled with via switching.
I recommend this book to anyone who has been switched from L to R. I’m excited about finishing this book, who knows where it might lead.
Abby

]]> By: Mel http://www.rkwest.com/left-handed/2007/04/10/hidden-handedness/comment-page-1/#comment-2639 Mel Sun, 16 Sep 2007 05:01:17 +0000 http://www.rkwest.com/left-handed/?p=59#comment-2639 This book really sounds interesting; I honestly have never really thought about this subject. I will definitely have to check this book out and tell my friends about it! This book really sounds interesting; I honestly have never really thought about this subject. I will definitely have to check this book out and tell my friends about it!

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